Invention Grant
US09512794B2 Noise, vibration and harshness reduction in a skip fire engine control system
有权
跳火消防车控制系统的噪音，振动和粗糙度降低
- Patent Title: Noise, vibration and harshness reduction in a skip fire engine control system
- Patent Title (中): 跳火消防车控制系统的噪音，振动和粗糙度降低
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Application No.: US14992779Application Date: 2016-01-11
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Publication No.: US09512794B2Publication Date: 2016-12-06
- Inventor: Louis J. Serrano , Xin Yuan , John W. Parsels , Mohammad R. Pirjaberi , Mark A. Wilcutts , Masaki Nagashima
- Applicant: Tula Technology, Inc.
- Applicant Address: US CA San Jose
- Assignee: Tula Technology, Inc.
- Current Assignee: Tula Technology, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Beyer Law Group LLP
- Main IPC: F02D41/00
- IPC: F02D41/00 ; F02D41/14 ; F02D41/30
Abstract:
A variety of methods and arrangements for reducing noise, vibration and harshness (NVH) in a skip fire engine control system are described. In one aspect, a firing sequence is used to operate the engine in a skip fire manner. A smoothing torque is determined that is applied to a powertrain by an energy storage/release device. The smoothing torque is arranged to at least partially cancel out variation in torque generated by the skip fire firing sequence. Various methods, powertrain controllers, arrangements and computer software related to the above operations are also described.
Public/Granted literature
- US20160201586A1 NOISE, VIBRATION AND HARSHNESS REDUCTION IN A SKIP FIRE ENGINE CONTROL SYSTEM Public/Granted day:2016-07-14
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